most versatile insulation

This reduces our reliance on virgin resources because virgin polyester is oil based

Front zip accessory pocket with internal organization & key clip

Mmamut's Aenergy Light styles solve for a full range of seasons and pursuits

Xero Z-Trek - Mens Running Accessories most versatile insulationThe comfort of a sport sandal upper, the lightweight, barely there feel of a packable travel sandal. This combo lets the Z Trek do it all. The Z Trek is an upgrade to the popular original, now with smooth, tubular nylon straps made from rPET recycled materials. The fully adjustable strap system lets you fine tune your fit, giving you the security you love in Xero Shoes.